A healthy snacks firm set up by a husband-and-wife team is seeking City investors as it chases international growth.

Bounce – started by Andy and Paula Hannagan in a garage in 2004 – has appointed corporate advisers from Spayne Lindsay to help sell a stake in the firm, which makes high-protein and gluten-free foods.

Its products, which include beetroot and cashew energy balls, left, are available in major supermarkets.

Bounce is breaking even with £20m sales annually but is hoping to expand internationally

A City source said the firm based in Guildford, Surrey, is breaking even with sales of up to £20 million a year.

It is also expanding globally, notably in the United States. The global healthy snacks market is forecast to reach £25 billion by 2025, growing at an average annual rate of 5.1 per cent, according to Grand View Research.